SHARE-BASED COMPENSATION - Share Based Compensation Expense (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense, pre-tax	$ 55.0	$ 60.5	$ 62.0
Tax benefit related to awards	(16.6)	(17.8)	(16.2)
Total expense, net of tax	38.4	42.7	45.8
Employee Stock Option [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense, pre-tax	32.4	41.7	47.6
Restricted Stock Units (RSUs) [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense, pre-tax	$ 22.6	$ 18.8	$ 14.4